
Subaru
Touring XT AWD
338 HP XT trim with 74.7kWh battery. 6.6kW onboard charger, a 32A Level 2 circuit is sufficient.. Before you spend $2,000 to $8,000 on a panel upgrade you may not need, get a real NEC 220.82 load calculation from an IBEW Master Electrician.
Sharing this link prefills the calculator with your Subaru Solterra.
These specs feed directly into the NEC 220.82 load calculation for your home panel.
Built for the Subaru Solterra. Same five NEC methods we run for every car.
Real NEC 220.82 load calculation
The same math an electrician does, broken out line by line so you can verify it.
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The math comes from the same NEC 220.82 calculation we run in the assessment.
Not necessarily. The Subaru Solterra draws up to 28A on Level 2 charging, which requires a 40A breaker under NEC continuous-load rules. Whether your panel can add that depends on its size and existing loads, many 200A panels and even some 100A panels have room. A NEC 220.82 load calculation is the only way to know before you spend $2,000 to $5,000 on a service upgrade.
The Subaru Solterra Touring XT AWD accepts up to 6.6 kW (about 28A) on Level 2 AC charging. A matched 28A charger on a 40A breaker fully utilizes the car's onboard charger. A smaller 32A or 24A charger still works and may avoid a panel upgrade.
At its maximum 6.6 kW Level 2 rate, a Subaru Solterra takes about 11.3 hours to go from empty to full on its 74.7 kWh battery. Most owners charge overnight from 20% to 80%, which takes roughly 6.8 hours.
For the maximum 28A charging speed the Subaru Solterra supports, NEC 625.41 requires a 40A breaker (continuous load = charger amps × 1.25). A smaller breaker is acceptable if you set the charger to a lower amperage.
The Subaru Solterra Touring XT AWD uses a NACS connector for AC and DC fast charging. Most Level 2 home chargers ship with the matching plug or include an adapter.
Sometimes, especially with gas heat. A 100A panel has a safe continuous capacity of 80A. The Subaru Solterra draws 28A at max Level 2 speed. Whether that fits depends on your existing loads (HVAC, range, dryer, water heater). Many 100A homes with gas heat can add a 24A or 32A charger without a service upgrade.